Precast plaster-wall section and means for packing same



April 27 1926.

W. H. ADAMS PRECAST PLASTER WALL SECTION AND MEANS FOR PACKING SAME Original Filed June 4, 1925 5 n a W. H. Adams INVENTOR. M i

A TTORNEYS.

Patented Apr. 27, 1926 UNITED STATES H 1,582,722 PATENT OFFICE.

WILLIAM B. amms, on NEW YORK, n. Y.

rnncas'r rnasrna-wann snc'rion AND MEANS son PACKING- same.

Original application filed July 4, 1925, Serial 10.34991 Divided and this application filed September 28, 1925. Serial No. 58,205.

To all whom it-mag com-em:

Be it known that 1, WILLIAM H; ADAMS,

a citizen of the United States,'residing at New York city, N. Y., have invented cer ain 5 new and useful Improvements in Precast Plaster-Wall Sections and Means for Packing Same, of which the following is a specification.

' This invention relates to improvements in pre-cast plaster wall sections and more specifically to means for packing said sections for transportation.

Inmy application Serial No. 34,995 filed June 4, .1925, I have disclosed a novel pre- 1 cast plaster wall section and means. for packing the same, and. the present application is a division of application Serial No. 34,995.

' It is customary in manufacturing wall boards or the like with a body of gypsum or similarmaterial to enclose the opposite edges of the board and. thecovering is permanently secured to said edges. I have found that the edges of the board need not be covered when they are placed on the wall, but these edges may be'left raw or uncovered, to facilitate the placing of plaster or the like at the joints, when the boards or sections are placedon the walk; To'permit this, however, the' opposite edges of each section must be made with rabbets at both sides thereof. If rabbets are formed at both sides of the opposite edges of each board, it is obvious that the edge portions of each board will be of less thickness than the central portion of the board and consequently whena number of such boards are superposed for'shipment, the edge portions of the-boards will not contact with each 40 other but spaces will be left between the same. As a result the edge portions are liable to vibrate and causecracking of the sections and loosening of the raw material.

at the edges of the sections. To overcome e5 tl iisdisadvantage I have discovered that the vibration may be preventedand the raw edges protected, if substantially U-shaped strips of paper are placed over the rahbet edge portions of the pie-cast plaster wall sections when the same are to be shipped.

It is therefore the primary object of the present invention to provide pre-cast plaster wall sections of special formation, with loose edge strips, which not alone prevent vibration of the strips when they are placed bets 2 at the edge polnted out in the appended claim.

Referring to the drawing:

Eigure 1 is a perspective View of a number of pre-cast plaster wall sections constructed in accordance with my invention, and in superposed relation for the purpose of shipment; the opposite rahbeted edge pork tions of each section being provided with {ll-{shaped protecting strips of paper or the Fig. 2 is an end View of four of these sections in superposedrelation and partly in section to facilitate illustration.

'At the outset of the detail description, it may be stated that the improved pre-cast plaster wall sections in accordance with this invention may be manufactured by machines similar to those employed in making 'pla ster boards. During manufacture a facing strip 1 of paper or the like isfed along the table of the machine and the table will be provided with raised portions to form the rabortions of the paper. As ong, a layer 3 of gypsum material of the characboards, it deposited on Afterwards the surface of the layer 3 may be. troweled off to provide rabbete 4 at the upper side of the section, and finally a surface sheet 5 of paper or. the like may be placed over the layer 3, and its edge portions 6 be bent into the rabbets 4. In this way I obtain a laster wall section provided with rabbete edge portions andhaving raw edges 10 all around. These raw edges enable me to paint the ed ofthe sections with plaster or the like 100 be ore they are butted together, or to fill the joints with plaster after they are nailed to the wall, .in order to produce'a wall or ceiling of solid plaster or other cementitious material, thus deriving the benefit of 105 better fire protection and insulation, also more substantial construction, as the walls and ceiling thus formed will be solid as concerns the basic material.

The sections formed in accordance with 1 the paper moves a or' any other simliar ter, used with plaster the paper sheet 1.

the foregoing description, are exactly the same as those disclosed in the parent ap lima of course have such reinforcing strips if esired.

While the rabbets at the opposite edge of the. sheet, facilitate the formation of the joints they are open to a disadvantage in shipment. If a number of the sections are placed in superposed relation for transportation, vibration may cause the reduced edge portions to eventual y crack, and to prevent this I place a U-shaped bending strip 11 loosely over the rabbeted side edge portion of each section. These binding strips will protect the raw side edges and will enter the rabbets 2 and 4, and the outer surfaces 10f its flaps 12 will be flush with the outer surfaces of the facing sheets 1 and 5. This is clearly shown in Fig. 2, and it will be appreciated by those skilled in the art that such binding s'tripsv will prevent vibration from fracturing the edges .of the sections when said sections are in superposed relation during shipment.

' From the fore oing it is believed that the invention may In readily understood by those versed in the art, and it is obvious that changes may be made in the details disclosed without departing from the spirit of the invention as expressed in the claim.

What I claim and desire to secure by Letters Patent is: v

A package including a series of superposed pr'e-cast plaster wall sections, each provided with rabbets on each side of op posite edge portions of thefsame, of substantially U-shaped bindin strips loosely arranged at the rabbeted e ges of the sec tions and extending into the rabbets, the outer surface of the arms of each binding strip being in the same plane as the outer surfaces of the body of the wall section which it engages for preventing the rabbeted edge portions from vibrating and cracking during shipment.

In testimony whereof I aflix my signature.

WVILLIAM H. ADAMS. 

